Picture shows three of the Comp “R” (875-16) lifters. First is normal, second has a bent retainer, third has no retainer. Maybe the retainer blocked an oil passage or got ground up, hence the spun bearings.
I’m not one to jump on the “so and so is making junk” bandwagon, but so many people have had problems with these lifters that it seems like all the cases can’t be improper setup.
So now I either go back to “stock” lifters, or shell out $490 for Morel lifters.
I’m seeing a lot of problems with comp’s quality anymore. There’s a some 3800 guys that have had problems with their retainers being mismatched in thickness and their lifters being machined wrong.
Comps are junk. I have switched to crane lifters, which have held up nicely so far. Half way thru the season this year I’m goin to change them out with some crowlers.
Since this came back up, I was able to return the lifters and Comp is sending me the stock style replacements. I’m not revving past 6200-6300 so they should be fine. The Comp R lifters are just too finicky for everyday use.